CIccXformCreator Class Reference

#include <IccXformFactory.h>

Public Member Functions
	~CIccXformCreator ()

Static Public Member Functions
static CIccXform *	CreateXform (icXformType xformType, CIccTag *pTag=NULL, CIccCreateXformHintManager *pHintManager=NULL)
static IIccXformFactory *	PopFactory ()
static void	PushFactory (IIccXformFactory *pFactory)

Private Member Functions
	CIccXformCreator ()
CIccXform *	DoCreateXform (icXformType xformType, CIccTag *pTag=NULL, CIccCreateXformHintManager *pHintManager=NULL)
IIccXformFactory *	DoPopFactory (bool bAll=false)
void	DoPushFactory (IIccXformFactory *pFactory)

Static Private Member Functions
static CIccXformCreator *	GetInstance ()

Private Attributes
CIccXformFactoryList	factoryStack

Static Private Attributes
static CIccXformCreatorPtr	theXformCreator

Detailed Description

Class: CIccXformCreator

Purpose: CIccXformCreator uses a singleton pattern to provide dynamically upgradeable CIccXform derived object creation based on xform type.

Constructor & Destructor Documentation

~CIccXformCreator()

CIccXformCreator::~CIccXformCreator

(

)

{
  IIccXformFactory *pFactory = DoPopFactory(true);
 
  while (pFactory) {
    delete pFactory;
    pFactory = DoPopFactory(true);
  }
}

References DoPopFactory().

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CIccXformCreator()

CIccXformCreator::CIccXformCreator ( )

inlineprivate

Only GetInstance() can create the signleton

{ }

Member Function Documentation

CreateXform()

static CIccXform * CIccXformCreator::CreateXform ( icXformType  xformType, CIccTag *  pTag = NULL, CIccCreateXformHintManager *  pHintManager = NULL  )

inlinestatic

Function: CreateXform(xformTypeSig) Create a xform of type xformTypeSig.

Parameter(s): xformType = signature of the ICC xform type for the xform to be created pTag = tag information for created xform pHintManager = contains additional information used to create xform

Returns a new CIccXform object of the given xform type. Each factory in the factoryStack is used until a factory supports the signature type.

      { return CIccXformCreator::GetInstance()->DoCreateXform(xformType, pTag, pHintManager); }

References DoCreateXform(), and GetInstance().

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DoCreateXform()

CIccXform * CIccXformCreator::DoCreateXform ( icXformType  xformType, CIccTag *  pTag = NULL, CIccCreateXformHintManager *  pHintManager = NULL  )

private

{
  CIccXformFactoryList::iterator i;
  CIccXform *rv = NULL;
 
  for (i=factoryStack.begin(); i!=factoryStack.end(); i++) {
    rv = (*i)->CreateXform(xformTypeSig, pTag, pHintManager);
    if (rv)
      break;
  }
  return rv;
}

References IIccXformFactory::CreateXform(), and factoryStack.

Referenced by CreateXform().

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DoPopFactory()

IIccXformFactory * CIccXformCreator::DoPopFactory ( bool  bAll = false )

private

{
  //int nNum = (bAll ? 0 : 1);
 
  if (factoryStack.size()>0) {
    CIccXformFactoryList::iterator i=factoryStack.begin();
    IIccXformFactory* rv = (*i);
    factoryStack.pop_front();
    return rv;
  }
  return NULL;
}

References factoryStack.

Referenced by ~CIccXformCreator(), and PopFactory().

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DoPushFactory()

void CIccXformCreator::DoPushFactory ( IIccXformFactory *  pFactory )

private

{
  factoryStack.push_front(pFactory);
}

References factoryStack.

Referenced by GetInstance(), and PushFactory().

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GetInstance()

CIccXformCreator * CIccXformCreator::GetInstance ( )

staticprivate

Function: GetInstance() Private static function to access singleton CiccXformCreator Object.

Parameter(s): None

Returns the singleton CIccXformCreator object. It will allocate a new one and push a single CIccSpecXform Factory object onto the factory stack if the singleton has not been intialized.

{
  if (!theXformCreator.get()) {
    theXformCreator = CIccXformCreatorPtr(new CIccXformCreator);
 
    theXformCreator->DoPushFactory(new CIccBaseXformFactory);
  }
 
  return theXformCreator.get();
}

References DoPushFactory(), and theXformCreator.

Referenced by CreateXform(), PopFactory(), and PushFactory().

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PopFactory()

static IIccXformFactory * CIccXformCreator::PopFactory ( )

inlinestatic

Function: PopFactory() Remove the top IIccXformFactory from the stack of xform factories tracked by the system.

Parameter(s): None

Returns the top IIccXformFactory from the stack of xform factories tracked by the system. The returned xform factory is no longer owned by the system and needs to be deleted to avoid memory leaks.

Note: The initial CIccSpecXformFactory cannot be popped off the stack.

      { return CIccXformCreator::GetInstance()->DoPopFactory(); }

References DoPopFactory(), and GetInstance().

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PushFactory()

static void CIccXformCreator::PushFactory ( IIccXformFactory *  pFactory )

inlinestatic

Function: PushFactory(pFactory) Add an IIccXformFactory to the stack of xform factories tracked by the system.

Parameter(s): pFactory = pointer to an IIccXformFactory object to add to the system. The pFactory must be created with new, and will be owned CIccXformCreator until popped off the stack using PopFactory(). Any factories not popped off will be taken care of properly on application shutdown.

      { CIccXformCreator::GetInstance()->CIccXformCreator::DoPushFactory(pFactory); }

References DoPushFactory(), and GetInstance().

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Field Documentation

factoryStack

CIccXformFactoryList CIccXformCreator::factoryStack

private

Referenced by DoCreateXform(), DoPopFactory(), and DoPushFactory().

theXformCreator

std::unique_ptr< CIccXformCreator > CIccXformCreator::theXformCreator

staticprivate

Referenced by GetInstance().

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The documentation for this class was generated from the following files:

• IccProfLib/IccXformFactory.h
• IccProfLib/IccXformFactory.cpp